Hydlide [Model TEX-62]

A hidden message begins at address 5000 in the ROM:

HYDLIDE for MSX
Version 2.0
ROM cartridge

Programmed
by KATO EIJI
1985.10.-4
- 10.20
MESSAGE:
ANGOU-CODE O KAIDOKU DEKITAKATAWA, T&E SOFT KATO MADE GOIPPOU KUDASAI. TADASHISUBETE NO BIT NO IMI O KAIDOKU SHITEKUDASAI.
(Translation: Those who were able to decipher the code, please notify Kato of T&E Soft. However, please decipher the meaning of all the bits.)

HINT:
MY BIRTHDAY IS
S40.-9.21
(PLEASE GIVE ME A PRESENT)
(note: S40 is short for Showa 40 which stands for the year 1965)

MY CAR IS
SKYLINE
2000GT-TURBO
NO.56-5912
(SKYLINE NO TURBO-SOUND WA SHIBIRERU HODO SAIKO-!!)
(translation: The Skyline's turbo sound is so awesome it makes me go numb!!)

MY BIKE IS '
KAWASAKI
GPZ400R
NO. 2739
(YAPPARI BIKE WA HAYAI !!)
(translation: Bikes sure are fast!!)